A MERV-13 (or ePM1 per ISO 16890) filter for general ventilation is more restrictive than low-MERV disposables. The primary IAQ/energy trade-off it introduces is (conceptual)?

Choices

• (A) Zero fan power in all AHU
• (B) Eliminate OA in hospital OR
• (C) No MERV in labs
• (D) Higher static pressure / more frequent change-outs vs particle capture, requiring ESP or larger fan energy